Abstract
This case discusses a drug–gene interaction. Promethazine is a cytochrome P450 (CYP) 2D6 substrate. Patients who are CYP2D6 poor metabolizers exhibit greater sedation for a given promethazine dose.
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References
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Wittwer, E.D., Sprung, J., Nicholson, W.T. (2015). Predisposed to Doze. In: Marcucci, C., et al. A Case Approach to Perioperative Drug-Drug Interactions. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7495-1_86
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DOI: https://doi.org/10.1007/978-1-4614-7495-1_86
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